---
title: "Thionyl chloride (7719-09-7): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/thionyl-chloride-7719-09-7/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/thionyl-chloride-7719-09-7/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/thionyl-chloride-7719-09-7/
---

Hazard search

# Thionyl chloride

CAS number

7719-09-7

Also known as

Sulphinyl chloride · Sulphinyl dichloride · Sulphurous dichloride · Sulphurous oxychloride · Thionyl dichloride · Thionyle chloride

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 15-minute STEL | 1 ppm |  |
| 15-minute STEL | 4.9 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **OSHA CSI** | Active (pump) |  | IC | [225-36-2](https://analyt-mtc.com/catalog/product/skc-impingers/#part-225-36-2) / [225-36-5](https://analyt-mtc.com/catalog/product/skc-impingers/#part-225-36-5) / [225-22](https://analyt-mtc.com/catalog/product/biosampler/#part-225-22) |
| **Non-agency** / Thionyl chloride by Colorimetric analysis | Direct-reading | Gastec detector tube |  | [810-5La](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-5la) |

Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.

Source: [SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab)](https://www.skcltd.com/hazard-search.html); [SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)](https://international.skcinc.com/sampling-guides/)